Beta Williamson County, TX only — data and coverage are limited during early access.

1516 HAYNIE BND, ROUND ROCK, TX 78665

ROUND ROCK, 78665 — williamson County

3 bed2 bath2,147 sqftBuilt 2006

Property at a Glance

This home is estimated between $334,673 and $524,674, with a best estimate of $386,850. That places the property above the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056, in a neighborhood that declined 4.7% over the past year.

Estimated Value Range

$334,673 $524,674
Best Estimate
$386,850
WCAD Value
$316,726
High Confidence

Based on 5 comparable properties(5 in the same subdivision)

Based on 5 comparable properties in R409599G - STONEY BROOK - ALL SECTIONS, this home's estimated market value is between $334,673 and $524,674. All 5 comparables are in the same subdivision, giving this estimate high confidence.

Comparable Properties (5)

1524 HAYNIE BND, ROUND ROCK, TX 78665
0.02 mi 100% similar Same subdivision
3 bed 2 bath 2,114 sqft Built 2009
Raw Value $314,698
Adjusted Value $334,673

Adjusted +$7,641 for 33 sqft more living space and +$12,334 for being newer. Net adjustment: +$19,975.

1515 HAYNIE BND, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,982 sqft Built 2007
Raw Value $307,841
Adjusted Value $350,157

Adjusted +$38,205 for 165 sqft more living space and +$4,111 for being newer. Net adjustment: +$42,316.

1528 HAYNIE BND, ROUND ROCK, TX 78665
0.04 mi 100% similar Same subdivision
3 bed 2 bath 1,843 sqft Built 2007
Raw Value $324,995
Adjusted Value $399,496

Adjusted +$70,390 for 304 sqft more living space and +$4,111 for being newer. Net adjustment: +$74,501.

1519 HAYNIE BND, ROUND ROCK, TX 78665
0.03 mi 100% similar Same subdivision
3 bed 2 bath 1,878 sqft Built 2007
Raw Value $320,453
Adjusted Value $386,850

Adjusted +$62,286 for 269 sqft more living space and +$4,111 for being newer. Net adjustment: +$66,397.

1527 HAYNIE BND, ROUND ROCK, TX 78665
0.05 mi 100% similar Same subdivision
4 bed 2 bath 1,554 sqft Built 2008
Raw Value $379,144
Adjusted Value $524,674

Adjusted +$137,307 for 593 sqft more living space and +$8,223 for being newer. Net adjustment: +$145,530.

The Neighborhood

This home is valued 3.5% below the R409599G - STONEY BROOK - ALL SECTIONS median of $328,056. That positions it competitively for buyers comparing within the neighborhood. Note that values in this subdivision declined 4.7% over the past year.

R409599G - STONEY BROOK - ALL SECTIONS

typical
197 Properties
$328,056 Median Value
-4.7% YoY Change
0% Have Pool
100% Have Garage
This Home
$316,726
Median
$328,056

This home is -3.5% below the subdivision median.

Tax Analysis

The estimated annual property tax is $5,699 across all districts. With a homestead exemption claimed, that drops to $4,390 — saving $1,309 per year. That's $366 per month a buyer should budget. The assessed value increased roughly in line with the neighborhood, so a tax protest is unlikely to yield significant savings.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$2,829
Round RockCity0.3720%$1,178
Williamson CountyCounty0.3694%$1,170
Austin Community Collegespecial0.1034%$327
Williamson County FM/RdCounty0.0443%$140
Upper Brushy Creek WCIDWater0.0170%$54
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax1.7993%$5,699

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $386,850 would pay approximately $2,415 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

View full property details